Means for controlling elastic fluids



A. IONIDESJJmfAND S. V. COOKE. MEANS FOR CON'TROLLING ELASTIC FLUID'S.

-s APPLICATON FILED OCT- 31,1919.

Patented Nov. 28, V1922.

Iza/venan Amzney Patented Nov. 128, l 922.

naires stares ALEXANDER CONSTANTINEVIONIDES, JR.,

ratten ann Asrnrmv vro'ron COOKE, or LONDON,

ENGLAND; SAID COOKE ASSIGN-OR T SAID IONIDES.

'minimis non ooN'rnOLLrNe nLAs'rro muros.

AOriginal application filed December To @ZZ inkom t may concern:

Be 1t known that we, 'ALEXANDER CON- lsrANTINn IoNIDns, Junior, a subject of the taining a constant relationship. between vthe pressures of twov elastic fluids for thepurpose of uniting them in determined propon y: tions, and it is of the type in which a movable partition ysuch as a bell or diaphragm by its movement operates valves which control the pressures of the fluids to which the partition is subjected upon its opposite sides, the present application being a divisional application from Serial No. 137885.

In order to have satisfactory regulation iny apparatus as above, itis necessary to give the movable partition a sufficient-ly large area, while at the same time any unnecessary increase of weight must be avoided so that the momentum of the moving parts may be reduced to a minimum; Ifrictional resistance to movement of the parte and the influence of pressure and velocity of the fluidson the valves must also, as far as possible, be eliminated. v

'Ihe object of the presentinvent'ion is to provide for the foregoingconsiderations in a compact and improved construct-ion.

The invention consists in a fluid pressure balancing device for controlling the pressures of two fiuids by valve `means operated by a partition movable in accordance with the pressures ofthe said fluids acting on opposite sides thereof, in which valve means for the two liuids are positioned one 'above the otherl in an upright casing divided into an upper and a lower compartment by said partition and the valve'means for regulating one fluid is connected to and moves upwards or downwards in accordance with the movement ofthe partition, while the other valveA is connected to the partition by suitable direction reversing means, so that thefweight 0 at 97 Lewin Road,

19, 1916, Serial No. 137,885. Divided `and this application filed October 31, 1919;* ,"Eerial, No.1334,877.

of one valve may be arranged to balance the weights of the other valveand the partition.

The invention further consists in the improved'iluid ypressure balancing device and various features thereof asherein'after described -and more fully pointed out in the claims.

Referring now to the accompanying ings .v

f Figure lI is a sectional elevation of one form of apparatus for carrying the invention intoeifect.

.Figure 2 is-'a plan thereof with the-'top cover removed, and f i Figure is a section on the line X-X of Figurell. f' v f draw- In carrying the invention into effect in the form illustrated by `way of example, an upright casing or tower-lile structure S formed of lower and rupper rrectangular members a and a having cylindrical exten sions a2, a3, lconnected by means of 'anges a4 and a5, and thewhole' surmounted by a cover a6 is provided 'with'two double-beat valve boxes Z) and. o arranged with they valves c and c in line vertically one above the other and at some distance apart. l

The valve -boXes b, are preferably formed vas separate castings insertedy through apertures o?, a8, in the` sides of the tower and flanges 62,63, attached to thelboxes by pipe connections b4 `and b5, form ,a fluid-tight joint round the apertures.L The twogpipe connections b4 and b5 have flanges Zi and o7 upon the outside of the tower to which the pipes supplying the fluids are connected. Upon the opposite'side o-f the tower flanges a9, al",y are yprovided fork the pipes conducting the fluids from the apparatus after their pressureshavebeen regulated by means of the double-beat valves. n

The suitable double-beat valves c and c preferably open by a downward movement,

and in order to reduc-e the: inertia of the `mov ing parts to avminimum thevalves are madel as light as possiblefconsistent with the necessary rigidity. Oneor both valves mayv be constructed, as shown in the knpperpart ofl the ligure, of two hollow frusto-coni'cal mem-` bers c2` c3, supported upon a central tube or column c4 and braced togetherby a plurality of tension rods or wires c5,.evenly distributed around the circumference of the valve just within the seats which are formed on rings c, c7, of somewhat stouter section adapted to contact with the periphery of the frusto-conical members 02, 03.

@Within the cylindrical central portionof the casing or towerv between the two valve boxes is a horizontal Huid-tight partition or plate dividing the casing into an upper and a lower compartment each containing a valve; Thepartitionas illustrated formsthe top of an ordinary gas bell d, the sides of the bell being accommodated in an annular tank e having a .rim "e9 held between".- the flanges at, a5, and -containing a suitable liquid sealing medium such asroil.

The belld may be ofthellightest` possible construction and the tank c may be provided withsupporting members e, e2, adapted'to protect the top of the bell should it besubjecte'd toany: undue stress@ r Apertur'es e3,

e4, are provided in these members for'aliow ing access of the fiui'ds'to both sides of the top of the bell.` A chamber'e5-m'ay also-be formed beneath the member e by Vmeans of' the bottom e6 and hooded tube e7 into which liquid may flow if the'sealfis blown by excessive pressure an'dl'from` which it may drain back into the tank through the'iball valve es. i

TheI apparatus illustrated is arranged to controlcoal or some other rich 'gas by means ofthe ylower valve arid. air bymeans of the' upper one. Tliegas valvec is therefore of considerably smaller' diameter than .the air valve c, sayfin tliir'atio of about one to three. It' isdesirabl'egfhwever, to allow both the valves to have an equal vertical travel for fthe? purposev of maintaining :the 'best the mixture are sul'istantially equal and bothy of the fdoubl'e'f-beat valves c and-c and their boxes Z) and b may be ofthe same diameter."

The lower valve c is directly connecte-d by a tensionmemb'er orthe like f "to the centre of the' under sideof the movable bell 03. rrhis member should preferably only bel fiexiblefatiwo points' yandshould have a guide fin' order that y no pendulum .orfoscillatorymotion maybe engendered. From the f c'entr'eof the upper side of the bellcZ la double flexible tension member f is connected toa quadra-nt@ fixed' at the centre of a horizontalf lever g positioned above "the bell (Z and "supported at its end '(72 by needlc'points g3, one` accommodated in 'a conical or like.`

cavity and the other in an angular groove or slot upon each side in the fulcruin studs The upper valve c is suspended by means of a double flexible tension member f2 passing over a quadrant g5 fitted upon the end of a horizontal lever gG positioned above the uppervalve box. This lever is pvoted in the manner hereinbefore indicated at one- Vthird of its length from the end from which the valve is suspended and it 1s supported by a bar g7 attache-d to the valve box b. From a quadrant g8 upon the opposite end of the lever gea tensionmember f is carried downward to a quadrant gv upon the end of the lever g', this member f3. being preferably a rod having at leach end suffi'- cient length of flexible material such as multiple link chain to accommodate the'arcs.

By means of the hereinbefore' described system'of levers and flexible-'tensionsinembers an upward movement of the bell (l results in an upward movement of the lowerr valve c and a downward movement offthe upper valve c. If? therefore, the pressure of the fluidpassing into the 4lower compartment exceeds the pressure of that passing;r into the upper compartmentr and lthe ybell moves upwardsas already indicatedl the lower double-beat valve will be movedy towards its seat and therefore check the flow of fluid through the lower half of the yapparatus and thus act to reduce its pressure. At the same time, the upper valve will be lowered, thus increasing the area available for iiuid to fiow into the upper compartment and tendingto increase the pressure therein.

By a suitable arrangement of the weights ofthe two valves, the bell and the levers and connections, the whole system-may be placed in a perfect state of balance, and by reducing the moving weights to the smallest possible amount and eliminating as far as possible the friction attending` the movement of the parts. the device may be made to operate with very minute pressure differences and to maintain practical uniformity between the pressures of the two fluidsissuing from the upper and lower compartments. By varying the weights on the opposite sides of the balance to a suitable extent any desired ratio` between the pressures of the two iiuids maybe constantly maintained.

(Having now describedr our invention,` what we claim as new and desire to secure by Letters Patent is y l. A iiuidpressure balancing de rice for controlling the pressures of two fluids by valve means operated by Ya partition in ovable` in accordance with the pressures of the said fluids acting on opposite sides thereof` in which valve means for the two fluids balanced in relation tothe 'Huid pressures are positionedone above the other in an upright casing divided into an upper and a lower compartment by said partition and the valve means for regulating one fluid is connected to and moves upwards or downwards in accordance with the movement of the partition while the other valve connected to the partition by suitable direction reversing means, so that the weight of one valve may be arranged to balancethe weights ofthe other valve and the partition. y p K 2. In combination in a gaseous liuid pressure controlling device an upright casing, a movable diaphragm sealed by a liquid joint dividing said casing into two compartments, valves balanced in relation to the fluid pressures controlling the admission of fluids to said compartments, a tension member connecting one valve to said diaphragm, a lever fulcrummed at one end positioned above said diaphragm, a tension member connecting the diaphragm to the centre of said lever, a second lever fulcrumed between its two ends positioned above the valve in the upper compartment, a tension 'member connecting the last-mentioned valve to one end of said second lever, and a tension member connecting the other end of said second lever with the end of the first mentioned lever.

3. ln combination in a kgaseous fuel pressure controlling device, an upright casing, a fluid-tight diaphragm dividing said casing into an upper and a lower compartment and movable in accordance with the variations in the pressures in said compartments, an outlet to each compartment, a valve balanced in relation to the fluid pressures in said lower compartment for admitting fluid thereto, a valve similarly balanced for a like purpose in said upper compartment and m'eafns whereby said diaphragm moves said valves in the opposite direction to one another so that a constant relationship may be maintained between the pressures of the fluids issuing from said outlets. l

In combination in a gaseous fuel pressure controlling device, an uprigl'it casing, a fluid-tight diaphragm dividing said casing into an upper and lower compartment,`and movable in accordance withthe variations in the pressures in said compartments, an outlet to each compartment, a valve balanced in relation to the fluid pressure connected to said diaphragm to move in accordance therewith `in one of said compartments for admitting fiuid thereto, a valve similarly balanced for a like purpose connected by direction reversing means to said diaphragm in the other compartment so that said diaphragm moves said valves in theopposite direction to one another for maintaining a constant relationship between the pressures of the uids issuing from said outlets and for balancing the weight of one valve by the weight ot the other valve and the diaphragm.

5. In combination in a gaseous fuel pressure controlling device, an upright casing, a fluid-tight diaphragm dividing said casing into an upper and a lower compartment and movable in accordance with the variations in the pressures in said compartments, an outlet toy each compartment.r a double valve balanced inrelation to the fluid pressure in said lower compartment for admitting fiuid theretoand connected to the under side of said diaphragm to move in accordance therewith, a double similarly balanced valve for a like purpose in said upper compartment and lightly constructed lever means whereby the upper side of said diaphragm is connected to said upper valve so that the valve moves in the reverse direction to the diaphragm.

6. ln combination in a gaseous 'fuel pressure controlling device, an upright casing, a fluid-tight diaphragm dividing said casing intor an upper and a lower compartment and movable in accordance with the variations in the pressures in said compartments, an outlet to each compartment, a valve balanced in relation to the fluid pressure in one compartment for admitting fluid thereto, a valve similarly7 balanced of considerably smaller diameter for a like purpose in the other compartment, means vwhereby said diaphragm moves both valves the same distance in the opposite direction to one another and a suit-l ably shaped tapering or like plug movable with said smaller valve in the orifice thereof to render the passageway therethrough proportional to the distance which the valve has moved during the entire length of the lift.

7; ln combination in a gaseous fuel pressure controlling device, an upright casing, a movable diaphragm dividing said casing into two compartments, valves both balanced in relation to the fluid pressures controlling the admission of fluids to said compartments one of said valves being built up of light tubular members braced by light tension rods, a tension'member connecting one valve to said diaphragm, and delicately balanced direction reversing means connecting the other valve thereto.

8. lin combination in a gaseous fluid pressure controlling device, an upright casing, a movable diaphragm dividing said casing into an upper and a lowerr compartment, valves balanced in relation to the fluid pressures controlling the admission of fluids to said compartments, means connecting the lower valve tov said diaphragm, a lever fulcrumed in said casing, means connecting the diaphragm to said lever, a second lever fulcrumed in said casing, means connecting the valve in the upper compartment to said second lever, and means connecting said second lever with the first mentioned lever.

9.' ln combination in a gaseous fluid pressure controlling device, an upright casing, a movable diaphragm dividing said casing into two compartments, a valve balanced in relation to the :fluid pressiires Controlling the admission of a iuid to' one Compartment, a largerv Valve eimilarl7 balanced controlling the admission of a second fluid to the other compartment, means for, connecting` the smaller v'alveto one side of said diaphragm, whereby Said smaller valve and diaphraom move in the same direction, and means or connecting the larger valve to the other side 10 of said diaphragm whereby said larger valve andfdiaphragm move in opposite directions, the force exerted by the 'Weight of the larger valve thus acting in the opposite direction to that exerted hy the combined Weights of the smaller valve and diaphragm, so as to obtain the minimum amount of moving mass.

In testimony'whereof We have signed our names to this specification. n

ALEXANDER CNSTANTINE IOIIIDES, Jr. siDNeYkvlcToR comm. 

